the field of medicine that specializes in the study of tumors. oncology. The branch of medicine that deals with the study and treatment of tumors.
Who are they? Millennials are currently aged 20-35, or born between 1980 and the end of 1994 (with some more generous definitions taking in those born up to 2000). They also get called Generation Y, because they follow on from Generation X (born 1965-1979), and other, less flattering names.
In 2016, U.S Pirg described Millennials as those born between 1983 and 2000. On the American television program Survivor, for their 33rd season, subtitled Millennials vs. Gen X, the Millennial tribe consisted of individuals born between 1984 and 1997.